GitLab CI: Direct build directory to $HOME #647
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I see commit e788ada718c7569267d3f622665d82970cc255fb tested in the pipelines. How does that differ from this? Is it just a rebase? |
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No matter - I see some extra link steps were added. I'm testing at https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/pipelines/23550 |
This patch directs the compilation of GitLab regression test models to the $HOME directory. This is motivated by incredibly slow file access times on GFDL's GPFS file system (F5), with the Nvidia builds taking a prohibitively long time (around 4 hours). Compiling in $HOME reduces Nvidia times to 15 minutes, with similar reduction times in the other compilation. This is achieved with only minimal changes to the build system. Instead of creating `build/`, we create a dedicated directory in `$HOME/ci/$CI_PROJECT_ID/build` and a symbolic link to this directory in the GPFS directory. To support these builds, additional symlinks to `src/` and `ocean_only/` (for static builds) are also created, from $HOME and back into GPFS. Once the job is completed, the temporary space in $HOME is deleted. This patch should not be considered a permanent solution, it is only meant to get us through a difficult period of testing. Hopefully we can revert this change in the near future.
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adcroft
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May 21, 2024
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This patch directs the compilation of GitLab regression test models to the $HOME directory.
This is motivated by incredibly slow file access times on GFDL's GPFS file system (F5), with the Nvidia builds taking a prohibitively long time (around 4 hours). Compiling in $HOME reduces Nvidia times to 15 minutes, with similar reduction times in the other compilation.
This is achieved with only minimal changes to the build system. Instead of creating
build/, we create a dedicated directory in$HOME/ci/$CI_PROJECT_ID/buildand a symbolic link to this directory in the GPFS directory. To support these builds, additional symlinks tosrc/andocean_only/(for static builds) are also created, from $HOME and back into GPFS.Once the job is completed, the temporary space in $HOME is deleted. We also check for and delete any other stale directories older than 3 days, such as from incomplete tests.
This should not be considered a permanent solution, it is only meant to get us through a difficult period of testing. Hopefully we can revert this change in the near future.